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Magnetization Direction and Orientation Direction

Magnetization Direction and Orientation Direction

Some of our customers who are new to magnets, may not know some of the professional knowledge about magnets, and may have such questions: what is the magnetization direction of the magnet, and what is the orientation direction of the magnet? In this article, we'll take a look at the magnetization direction and orientation direction.

Magnetization Direction and Orientation Direction Magnetization Direction and Orientation Direction

The magnetism of a permanent magnet mainly comes from its easily magnetized crystal structure. It can obtain extremely high magnetism under the action of a strong external magnetic field, and its magnetism will not disappear after the external magnetic field disappears. Therefore, "magnetization" is a key step for permanent magnets such as neodymium magnets to obtain magnetism.

Isotropic and Anisotropic Magnets

Magnets can be divided into two types: isotropic magnets and anisotropic magnets.

1. Isotropic magnets have the same magnetic properties in all directions and can be arbitrarily attached.

2. Anisotropic magnets have different magnetic properties in different directions. The direction in which it can obtain the best magnetic properties is called the orientation direction of the magnet.

If a magnet has an orientation process in the production process, it is an anisotropic magnet. Sintered NdFeB magnet is generally molded and pressed by magnetic field orientation, so the orientation direction needs to be determined before production, namely, the upcoming direction of magnetization. Powder magnetic field orientation is one of the key technologies for manufacturing high-performance NdFeB.

Magnetization Direction

The permanent magnet is applied with a magnetic field along the orientation direction of the magnetic field, and the strength of the magnetic field is gradually increased to reach the technological saturation state. This process is called magnetization. Sintered NdFeB magnets generally have several shapes such as square, cylinder, ring, and tile. The following are their common magnetization directions. 

Square Square

Cylinder Cylinder

Ring Ring

Tile Tile

In addition to the above-mentioned ordinary single-pole magnetization, the sintered NdFeB magnetic ring can also be multi-pole magnetized according to actual needs, that is, multiple N and S poles can be present on a plane after magnetization.

Conclusion 

Thank you for reading our article and we hope it can help you to have a better understanding of the magnetization direction and orientation direction of magnets. If you want to learn more about magnets, we would like to advise you to visit Stanford Magnets for more information.

As a leading magnet supplier across the world, Stanford Magnets has been involved in R&D, manufacturing, and sales of magnets since the 1990s. It provides customers with high-quality permanent magnets like SmCo magnets, neodymium magnetsAlNiCo magnets, and ferrite magnets (ceramic magnets) at a very competitive price.

About the author

Cathy Marchio

Cathy Marchio is an expert at Stanford Magnets, where she shares her deep knowledge of magnets like Neodymium and Samarium Cobalt. With a background in materials science, Cathy writes articles and guides that make complex topics easier to understand. She helps people learn about magnets and their uses in different industries, making her a key part of the company's success.

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